An experiment in basic procedural 2D world generation methods.

2D World Generation

ajcw

Thank you for the guidence! After looking into it, I now understand the mechanics of Gerstner waves, but I don't know how to layer them properly in practice. Ill just look at someone else's code cause the theoretical papers on the matter aren't really helping me write code haha. As for generating the waves with the FFT, I've actually been trying to program the FFT for while now for my music, so its funny it appeared here! Also, implementing the FFT will give me a good excuse to really try out Godot's new computes.

hehe well the truth is I forgot about shaders completely, as I started out trying to make _word generation_. So most of this was being made on the CPU. This is the same thing reimplemented with a vertex shader. The waves in the one from yesterday were also not that complex at all cause I was mainly focusing on getting the mesh to render out correctly. Its just the build in Value Cubic algorithm with some modifications. The _shader_ implementation is just using an implementation of simplex noise for the time being. One thing to note is that the low-poly style that makes the old one look like a mobile indie-game is gone completely, as that required I use face normals vs vertex normals. That will be possible once they reveal the currently inaccessible compute shader API (hopefully by 4.0 release). Right now the just computing the normal by sampling the surrounding noise for each vertex independently, making it more smooth. It doesn't look quite right so I get the feeling I didn't do it correctly, but I got work so WHO CARES ANYWAY!!!

I'm now generating a proper mesh instead of the weird cube stuff from yesterday. It was significantly easier than I had thought. The hardest part today was optimization. GDscript was not designed for large O(n^2) operations like this. I'm using the Godot 4.0 alpha, which introduces a new way to dynamically link code written in c++ or other languages, called GDExtention, so I may try that in the future.

my first attempt into 3d word generation, and also my first glance at 3d rendering as a whole. I've tried to learn about graphics in the past, to little success, but I forced myself to read and actually figure it out this time. The most I could figure out was how to create a cube out of triangles. Thus in order to create terrain, the code instantiates a bunch of cube meshes, and just moves the points which make up the top face up and down based on the noise algorithms. When placed next to each other, it looks like one continuous surface made of quads.
Is it the best code? No. 
Is it the best I could make? Also probable no. 
Does it work? debatably. 
Did I spend 2 hours trying to figure out how to calculate the normal? Yes.

This should embed now. ffmpeg to the rescue! Reposting now.
added some features to the land generation thing from before! The algorithm consist of base noise texture, a scale noise, and an overall terrain offset or height. This allows you to make details like mountains which gradually increase in intensity at a somewhat random interval.

2D World Generation

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